100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Encn281 Exam Questions & Answers 2024/2025 $7.99   Add to cart

Exam (elaborations)

Encn281 Exam Questions & Answers 2024/2025

 7 views  0 purchase
  • Course
  • Encn281
  • Institution
  • Encn281

Encn281 Exam Questions & Answers 2024/2025 Ww treatment biological processes(oxygen tension) - ANSWERSAerobic- free o2 present Anoxic- bound o2 forms Anaerobic- no free or combined o2 Land fill enviro concerns - ANSWERSLecchate- water in contact with waste Young-bod and ph Older-n and...

[Show more]

Preview 2 out of 6  pages

  • August 20, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Encn281
  • Encn281
avatar-seller
Bensuda
Encn281 Exam Questions & Answers
2024/2025

Ww treatment biological processes(oxygen tension) - ANSWERSAerobic- free o2 present

Anoxic- bound o2 forms

Anaerobic- no free or combined o2



Land fill enviro concerns - ANSWERSLecchate- water in contact with waste

Young-bod and ph

Older-n and toxins

Gas-methane gas

Time to reach steady state upto 20 years (50 ch4 and 50 co2)



Effects of composting(nutritional) - ANSWERS-macronutrients

-CN ratio

-particle size(ratio of mass to surface area and porosity of windrow)



Composting(operational) - ANSWERSTemp

Physical characteristics

Destruction of volatile solids



Composting(enviro) - ANSWERSTemp

Oh

Moisture content

Aeration



Most common Composting technequies - ANSWERSPassive aeration-Undistirbed natural phenomena

, Turned windrow-periodic turning

Most common because adaptable and technology simplicity



Benefits of composting - ANSWERSIncrease waste diversion

Soil arrendment

Enchanted recycling operations



Constraints composting - ANSWERSPoor feed=poor quality

Costs

Nusisance- pests and odour



Types of solid wastes - ANSWERSResidential

Commercial

Industrial

Construction



Components of waste management - ANSWERSGeneration-storage-collection/transport-
processing/disposal



Objective of waste management - ANSWERSPublic health

Enviro and biodiversity

Cost

Social concern



Ecosystem service of ozone in stratosphere - ANSWERSScreens out uc radiation in upper atmosphere



Ozone in the troposphere - ANSWERSMan made pollutant

Secondary air pollutant

Component of photochemical smog

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Bensuda. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

62491 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$7.99
  • (0)
  Add to cart